Good work and thanks for sharing.

We see this on the Focus newsgroup all the time. Somebody comes on and says
they bought a 5 years old Focus and it runs like s**t, lousy power, burns
more gas than their Bronco etc. When someone asks when was the last time the
poor beast had a tune-up the answer comes back "duh, I thought cars these
days didn't need tune-ups".

Cars these days don't need the timing and mixture adjusted, but they do need
periodic replacement of spark plugs and wires, fuel and air filters, clean
the intake and injectors, check the operation of the thermostat (incorrect
running temp can spoil how the engine works) etc.